package com.edu.cuotibook.service;


import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.atomic.AtomicInteger;

/**
 * create by sym  2021/3/24 21:07.
 * 存放内存的地方
 */
public class MemeryRoom {

    //线程锁 只允许单步操作
    public static volatile AtomicInteger lock = new AtomicInteger(0);


    //exel后缀集合 xls xlsx、xlsm、xltx、xlsb、xltx、xlam
    public static List<String> exelSuffs = new ArrayList<String>();
    static  {
        exelSuffs.add("xls");
        exelSuffs.add("xlsx");
        exelSuffs.add("xlsm");
        exelSuffs.add("xltx");
        exelSuffs.add("xlsb");
        exelSuffs.add("xltx");
        exelSuffs.add("xlam");
    }
}
